Bramble Flatbow where?

I am not 100% sure if it is better to ask this here or in the farming forum but as it is not build related I am asking here.

Does anyone know a location where max damage Inscribable Bramble Flatbows can drop? I have killed quite a bit and do not seem to have any luck getting one. I have seen them drop but dont remember now that I want one

I got mine in Kourna (dropped from one of the plant type foes - don't remember the name)

They mostly drops from the plants.

I could make salad by now and still cant get one. Argh.